Home / 208,143.25-287,237.84-112,650.02

Finding the Fourth Proportional to 208,143.25, 287,237.84 and 112,650.02

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Solution

The fourth proportional to 208,143.25, 287,237.84 and 112,650.02 is: 155,457.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,143.25 : 287,237.84 = 112,650.02 : x
  2. Step 2: Convert to fraction form
    208,143.25/287,237.84 = 112,650.02/x
  3. Step 3: Cross multiply
    208,143.25x = 287,237.84 × 112,650.02
  4. Step 4: Simplify right side
    208,143.25x = 32,357,348,420.76
  5. Step 5: Solve for x
    x = 32,357,348,420.76/208,143.25
  6. Step 6: Final answer
    x = 155,457.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.